So was thinking about doing some upgrading. I was going to get a k@n filter and thought why not grab some v stacks. anyone have stacks? like to have a little feedback. i have a pcIII and exhaust and also have had a proff dyno tune and plan on getting another one after buying the stacks. open for words of wisdom. thanks

 

I am curious as well...Anyone know if you can get them for a F4i? I noticed on the HRC web page that they sell some kind of stacks with the power up kit...I have searched everywhere on the net and can't seem to find much info on V stacks for a F4i and until yesterday (hrc webpage) thought they did not exist..I know they are quite popular on the RR's...Tks Andy

 

i just got mine installed with a fresh tune. i did the -1 +2 new chain new filter and the stacks and a dyno tune . i got 6 fpt and 3 horse. im very pleased

 

congratulations...That sounds like a pretty significant gain for a minimal investment....I still would like to know if you can get them for F4i's and is it worth it? tks

 

how much are the v stacks for 600rrs? I have looked into them and they are like $225 for a set for my 954...

 

i paid like 200 225 shipped cant remeber exact price. factorypro.com could help

 

good mod for the bux... congrats

 

Awesome. I'm able to get a new set on the cheap, but I wasn't sure that only getting 2-5 HP was worth the price. Nice to see the consensus is "yes." I'll post my results in a few weeks once I have them. THANKS!